手机号码格式化输入工具 PhoneNumberFormatUtils

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PhoneNumberFormatUtils.java

public class PhoneNumberFormatUtils implements TextWatcher {    private EditText numberEditText;    int beforeLength = 0;    int afterLength = 0;    public PhoneNumberFormatUtils(EditText numberEditText) {        this.numberEditText = numberEditText;    }    @Override    public void onTextChanged(CharSequence s, int start, int before, int count) {    }    @Override    public void beforeTextChanged(CharSequence s, int start, int count, int after) {        beforeLength = s.length();    }    @Override    public void afterTextChanged(Editable s) {        String txt = numberEditText.getText().toString();        afterLength = txt.length();        if (afterLength > beforeLength) {            if (txt.length() == 4 || txt.length() == 9) {                numberEditText.setText(new StringBuffer(txt).insert(txt.length() - 1, " ").toString());                numberEditText.setSelection(numberEditText.getText().length());            }        } else {            if (txt.startsWith(" ")) {                numberEditText.setText(new StringBuffer(txt).delete(afterLength - 1, afterLength).toString());                numberEditText.setSelection(numberEditText.getText().length());            }        }    }}

使用调用：

EditText et= (EditText) findViewById(R.id.et);et.addTextChangedListener(new PhoneNumberFormatUtils (et));

原文 EditText电话号码格式化输入、删除案例

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